It processes alloyed steel bars in diameters from 15 to 100 mm, with an overall output up to 30,000 t/a. There, hardening (austenitising and quench) and tempering, normalising (in austenitising furnace), soft annealing and stress relieving (in tempering furnace), are performed in continuous mode.
The key element used as common guideline to reach the performance targets is provided by the roll technology and design. The equipment is designed with a new concept of multiline inclined and shaped rolls. Covered by Danieli patent, this specific solution is based on the concept of continuous rotation of selected bars during their handling inside the austenitising furnace and the subsequent quenching system, in order to improve bar quality in terms of mechanical/ metallurgical properties and excellent straightness.
Following, the excellent results already achieved:

• Hardness variation < +/- 1 HRc along the surface of the bars
• Hardness variation < +/- 2 HRc from top-surface to core of the bars
• YTS = 850 ÷ 906 N/mm² – UTS = 976 ÷ 1,023 N/mm²
• Elongation = 15.6 ÷ 16.7 % – Reduction Area = 60 ÷ 61 %
• Martensite percentage on the bar surface (by water quench) > 90 %
• Martensite percentage on the bar core (by water quench) > 95 %
• Decarburization < 0.003 * D (diameter of bar)
• Added bending on the bar < 1 mm/m

The plant is in industrial operation following a smooth commissioning period and final acceptance.
_{(Source: Danieli Olivotto Ferrè)}